Toothbrush



FIG. 1 is a front perspective view of a toothbrush;

FIG. 2 is a rear view of the toothbrush of FIG. 1;

FIG. 3 is a side view of the toothbrush of FIG. 1; and,

FIG. 4 is an elevational view of the handle end of the toothbrush. 

The ornamental design for a toothbrush, as shown in the drawings. 